What was found
(CAN) WHEN SELECTION GEAR UP, RED LIGHT STAY ON AT THE NOSE SYSTEM INDICATION. INVESTIGATION CUT OUT, A/C ON JACKS, GEAR SELECTED AT UP POSITION, FOUND NLG NOT LOCKED PROPERLY BY THE UPLOCK HOOK. RETRACTION ACTUATOR ADJUSTMENT WAS USSPECTED (P/N 20605-000-05) DECISION WAS MADE TO READJUST THE ROD END OF THE RETRACTION ACTUATOR BEOFORE ANY ADJUSTMENT WAS MADE, FOUND BROKEN LOCK WASHER (P/N 19803). INSIDE TANG WAS MISSING AND ROD END ADJUSTMENT HAD CHANGE (MOVED IN), THE LENGTH OF THE ACTUATOR WAS SHORTER. NEW LOCK WASHER INSTALLED AND ACTUATOR ADJUSTED AS PER M/M 32-32-11 AND SYSTEM CHECKED OK.